The acceleration due to gravity on the surface of planet X is 19.6 m/s2. If an object on the surface of this planet weighs 980.0 newtons, what is the mass of the object?

A 50.00 kg

B 100.00 kg

C 490.0 N

D 908.0 N

What makes the best insulator against the flow of electricity?

What describes an atom when the number of electrons is less than the numbers of protons

The pressure in an automobile tire is 198 kpa at 300.0 k. at the end of a trip on a hot, sunny day, the pressure has risen to 225 kpa. what is the final temperature of the air in the tire, assuming the volume of the tire remains constant? a. 149 k b.

Bill leaves his 60 W desk lamp on every day, including weekends, for eight hours. After one month (30 days), how much total energy has been used by the lamp? Round your answer to the nearest whole number.

What light moves from a medium

Analyze: In the series circuit what characteristic was common throughout the experiment? What changed as you added more light bulbs?

StA A boat takes off from the dock at 2.5 m/s and speeds up at 4.2 m/s2 for 6.0 s. How far has the boat traveled? Round your answer to the nearest whole number.

In Part A, you determined that the heat added to the coffee is what you got. If it takes 4.2 J of energy to raise the temperature of 1.0 mL of coffee by 1.0∘C, then it should take twice as much energy to raise the temperature of 2.

The brightness of a star depends on what three factors?

What is most likely the relationship between Mendel's rules of genetics and Darwin's idea of biological evolution? Mendel's genetics states laws that are now part of the theory of biological evolution.